Maharishi

Because block ID's wont be the same, so once the "real" 2.0 comes, your server won't be compatible, and you will be on your own to fix it.

I'll second that. My thoughts go out to you guys. Take all the time you need, and let us, the community, know if we can help in any way.

Thank you so much Kysoto, moving the world to ssp made me able to fix the same issue I tried downloading the fix, that Maeyanie has supplied, but I'm not very experienced with modding, so I'm not sure I implemented it correctly. In my brief experience with these forums, that seems to be a common case: Too little tutorial/how-to in easy steps for things for the beginners. But that's just seen from my inexperienced viewpoint. On the other hand, this awesome modding work you are doing, makes up for a little waiting and trial/error form our side :)

My first post on the forums, yay I had the same issue, but I saw in another thread, that updating Java to version 7 might fix it, and it did for me. You have to look a little extra to find the version 7 it seems, sine its only at a beta/developers stage.